Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces

Reference 210.30.42.20.01.003

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces is a luxury watch that embodies the essence of precision, style, and adventure. Its sleek black ceramic bezel rotates for precise timing, while its round shape gives it a classic vibe. The black dial features stick and dot indexes for optimal readability, protected by a sapphire crystal. At its heart lies the Omega caliber 8806 movement, certified as a Master Chronometer with resistance to magnetic fields up to 15,000 gauss. With a water resistance rating of 300 meters and a limited edition of only 50 units produced, this watch is not just a timekeeper but also a collector's item. Its stainless steel bracelet is both sturdy and comfortable, making it perfect for all-day wear. Whether you're exploring the ocean or enjoying a night out, this watch ticks all the right boxes.
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Key Features

  • Omega caliber 8806 movement
  • 300m water resistance
  • Limited edition of only 50 units produced
  • Sapphire crystal protection
  • Stainless steel bracelet
  • Master Chronometer certification
  • Resistance to magnetic fields up to 15,000 gauss

Specifications

Brand
Omega
Family
Seamaster Diver 300m
Model
Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces
Reference
210.30.42.20.01.003
Movement
8806
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Omega Seamaster Diver 300M - 210.32.42.20.06.001 - Grey Wave / Rubber Strap - Full Set

Omega Seamaster Diver 300M - 210.32.42.20.06.001 - Grey Wave / Rubber Strap - Full Set

A 2023 Omega Seamaster Diver 300M with a grey wave dial and blue ceramic bezel, paired with a comfortable blue rubber strap.

  • Condition: like new
  • Material: stainless steel
  • Water resistance: 300m
Posted at
Dec 14, 2025, 5:31 PM
Active
[WTS] 2021 Omega Seamaster Diver 300M Nekton Edition 210.32.42.20.01.002 Complete Set

2021 Omega Seamaster Diver 300M Nekton Edition 210.32.42.20.01.002 Complete Set

A 2021 Omega Seamaster Diver 300M Nekton Edition in 42mm, featuring a dark grey dial with polished waves and a Grade 5 titanium bezel.

  • Condition: great to excellent, with some minor marks on the case and strap
  • Movement: Cal. 8806
  • Lume: nuclear
  • Water resistance: 300m
Posted at
Dec 14, 2025, 1:34 PM
Active
[WTS] Omega Seamaster Diver 300M Two Tone 42mm Black Dial 210.20.42.20.01.002 Complete

Omega Seamaster Diver 300M Two Tone 42mm Black Dial 210.20.42.20.01.002 Complete

Omega Seamaster Diver 300M Two Tone 42mm Black Dial in very good condition with minimal handling marks.

  • Condition: In very good condition, rated at 9.8/10
  • Box And Papers: true
  • Links Included: 3
Posted at
Dec 12, 2025, 11:02 AM
Active
[WTS] 2021 Omega Seamaster Diver 300M Nekton Edition 210.32.42.20.01.002 Complete Set

2021 Omega Seamaster Diver 300M Nekton Edition 210.32.42.20.01.002 Complete Set

The Omega Seamaster Diver 300M Nekton Edition is a 42mm watch with a dark grey dial, polished waves as contrast, and a Grade 5 titanium bezel. It has a solid case back and a full red seconds hand.

  • Condition: Great to excellent condition, with some marks and signs of use on the case and strap
  • Movement: Omega Cal. 8806, METAS certified
  • Water Resistance: 300m
  • Lume: nuclear
Posted at
Dec 11, 2025, 2:40 PM
Active
[WTS] 2023 Omega Seamaster Diver 300M "Seaweed" 42mm Green Dial 210.32.42.20.10.001 Full Set

2023 Omega Seamaster Diver 300M "Seaweed" 42mm Green Dial 210.32.42.20.10.001 Full Set

2023 Omega Seamaster Diver 300M 'Seaweed' model featuring a 42mm stainless steel case with green ceramic dial and rotating dive bezel.

  • Condition: Very nice preowned condition with some light scratches on the case and buckle
  • Case material: Stainless Steel
  • Case dimensions: 42mm diameter
  • Bezel material: Stainless Steel
Posted at
Dec 9, 2025, 8:07 PM
Active
[WTS] Omega Seamaster Diver 300m Black Dial with box and papers

Omega Seamaster Diver 300m Black Dial with box and papers

This Omega Seamaster Diver 300m features a stainless steel case, black ceramic dial, and a black rubber strap. It is powered by an in-house movement that runs flawlessly.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Water Resistance: 300m depth rating
  • Box And Papers: yes
Posted at
Dec 9, 2025, 7:34 PM
Active
[WTS] Omega Seamaster Diver 300M 18K Yellow Gold & Steel

Omega Seamaster Diver 300M 18K Yellow Gold & Steel

This is one of the best Omega watches produced, a beautifully maintained blue-dial Seamaster in great overall condition.

  • Condition: Fantastic overall condition, light wear marks
  • Warranty: Omega warranty included
  • Box: Original Omega wooden presentation box included
  • Bracelet Links: All original bracelet links (including extras) included
Posted at
Dec 9, 2025, 3:13 PM
Active
[WTS] Omega Seamaster Diver 300M 210.30.42.20.03.001 – 2024 – Full Set – Like New – Blue Wave Dial - $4899 Shipped

Omega Seamaster Diver 300M 210.30.42.20.03.001 – 2024 – Full Set – Like New – Blue Wave Dial - $4899 Shipped

2024 Omega Seamaster Diver 300M in like new condition with a blue ceramic wave dial and 55-hour power reserve.

  • Condition: Like new
  • Case size: 42mm
  • Water resistance: 300m
  • Movement type: Automatic
Posted at
Dec 9, 2025, 12:22 AM
Active